No cold start? fuel pump?

[SM0k3]

Ok when i got out to my car after it has been sitting a while it wont just start RIGHT UP i have to turn the key tot he on position a couple of times then itll jsut start right up.....otherwise itll just crank for a while.

I noticed when the car is running the fuelpump is pretty damn loud I can hear it buzzing from the outside of the damn car.....is my pump going out?


BTW the car runs fine(no lost of power) otherwise besides a hanging throttle inbetween shifts.

 

[Rick 91GT]

When the pump dies it will just die and leave you sitting. If the pumnp has gotten extremely loud it could be on it's way out...

Doesn't exactly explain your cold start issue though exactly. If the pump is weak it may take a little longer to get the fuel to the rail, as you do the key on key off it is building pressure.

I'd swap the pump

 

[mustang8719]

I agree I have the same trouble with mine.Im planning on replacing my pump to.

 

[HISSIN50]

i would toss a diagnostic fuel pressure gauge on there and watch it when the car is cold. see how many cycles of the key it takes to achieve proper pressure. if more than one, might be new pump time.

good luck.

 

[jocko]

it's the pump for sure,mine had the same problem and i put an external mount fuel press and i saw that the rail would loose press instantly,and to restart i would have to turn the key 5 to 6 times for a quick start,it ran fine tough even on the spray,put the new pump in problem gone and starts fast,i think the fuel pump has a check valve and it must be faulty so there is pressure loss